Wall mounted basket holder. Fastening with two 3-4 mm thick self-tapping screws. Any basket will do, check the main dimensions in the picture. In my case, the basket dimensions are 30x195x95.

I printed from PET. Layer 0.2, nozzle 0.4. Supports and positioning in the picture, only on the table. You can leave two walls and 10% filling, since the basket cannot withstand heavy loads.